/*
** $Id: lctype.h,v 1.12 2011/07/15 12:50:29 roberto Exp $
** 'ctype' functions for Lua
** See Copyright Notice in lua.h
*/

namespace KopiLua
{

	public partial class Lua
	{


/*
** WARNING: the functions defined here do not necessarily correspond
** to the similar functions in the standard C ctype.h. They are
** optimized for the specific needs of Lua
*/

//#if !defined(LUA_USE_CTYPE)

//#if 'A' == 65 && '0' == 48
/* ASCII case: can use its own tables; faster and fixed */
//#define LUA_USE_CTYPE	0
//#else
/* must use standard C ctype */
//#define LUA_USE_CTYPE	1
//#endif

//#endif


//#if !LUA_USE_CTYPE	/* { */

//#include <limits.h>

//#include "llimits.h"


//#define ALPHABIT	0
//#define DIGITBIT	1
//#define PRINTBIT	2
//#define SPACEBIT	3
//#define XDIGITBIT	4


//#define MASK(B)		(1 << (B))


/*
** add 1 to char to allow index -1 (EOZ)
*/
//#define testprop(c,p)	(luai_ctype_[(c)+1] & (p))

/*
** 'lalpha' (Lua alphabetic) and 'lalnum' (Lua alphanumeric) both include '_'
*/
//#define lislalpha(c)	testprop(c, MASK(ALPHABIT))
//#define lislalnum(c)	testprop(c, (MASK(ALPHABIT) | MASK(DIGITBIT)))
//#define lisdigit(c)	testprop(c, MASK(DIGITBIT))
//#define lisspace(c)	testprop(c, MASK(SPACEBIT))
//#define lisprint(c)	testprop(c, MASK(PRINTBIT))
//#define lisxdigit(c)	testprop(c, MASK(XDIGITBIT))

/*
** this 'ltolower' only works for alphabetic characters
*/
//#define ltolower(c)	((c) | ('A' ^ 'a'))


/* two more entries for 0 and -1 (EOZ) */
//LUAI_DDEC const lu_byte luai_ctype_[UCHAR_MAX + 2];


//#else			/* }{ */

/*
** use standard C ctypes
*/

//#include <ctype.h>


//#define lislalpha(c)	(isalpha(c) || (c) == '_')
//#define lislalnum(c)	(isalnum(c) || (c) == '_')
//#define lisdigit(c)	(isdigit(c))
//#define lisspace(c)	(isspace(c))
//#define lisprint(c)	(isprint(c))
//#define lisxdigit(c)	(isxdigit(c))

//#define ltolower(c)	(tolower(c))

//#endif			/* } */
	}
}

